HD6417660 RENESAS [Renesas Technology Corp], HD6417660 Datasheet - Page 566

• Manufacturer Part Number: HD6417660
• Description: Renesas 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

19.3.11 HcBulkHeadED Register (HBHEDR)
HBHEDR includes a physical address of the first ED in the bulk list.
19.3.12 HcBulkCurrentED Register (HBCEDR)
HBCEDR includes a physical address of the current ED in the bulk list. When the bulk list is
supplied by the round robin method, endpoints are ordered to the list according to these insertions.
19.3.13 HcDoneHeadED Register (HDHEDR)
HDHEDR includes a physical address of the finally completed TD added to the done queue. The
host controller driver need not read this register so that the content is written to HCCA
periodically in normal operation.
Rev. 1.00, 02/04, page 528 of 804
Bit
31 to 4 BHED
3 to 0
Bit
31 to 4 BCED
3 to 0
Bit
31 to 4 DH
Bit Name
—
Bit Name
—
Bit Name
Initial
Value
All 0
All 0
Initial
Value
All 0
All 0
Initial
Value
All 0
R/W
R/W
R
R/W
R/W
R
R/W
R
Description
Bulk Head ED
These bits are physical addresses of the first ED in the
bulk list.
Reserved
These bits are always read as 0. The write value should
always be 0. The operation is not guaranteed if 1 is
written to these bits.
Description
These bits are physical addresses of the current ED in
the bulk list.
Reserved
These bits are always read as 0. The write value should
always be 0. The operation is not guaranteed if 1 is
written to these bits.
Description
Done Head
These bits are physical addresses of the finally
completed TD added to the done queue.
Bulk Current ED